Relationships	Role	Relationship Start	Relationship End
Firstar Corporation	Parent	12/11/1999	8/11/2000
Ameribanc, Inc.	Parent	6/18/1992	12/10/1999
Mercantile Bancorporation Inc.	Parent	3/25/1988	6/17/1992
Gravois Bancorp, Inc.	Parent	9/23/1985	3/23/1988
Gravois Bancorp, Inc.	Parent	7/15/1981	9/22/1985
Mercantile Bank International	Subsidary	3/13/1986	8/11/2000
Mercantile Properties Inc.	Subsidary	3/13/1986	8/11/2000
Sangamon Investment Company	Subsidary	3/13/1986	8/11/2000
So-Mo Investment Company	Subsidary	12/12/1998	8/11/2000
Mercantile Community Development Corporation	Subsidary	9/8/1998	8/11/2000
Metropolitan Savings Service Corporation	Subsidary	2/2/1994	8/11/2000
Mark Twain St. Louis Investment	Subsidary	6/21/1997	8/11/2000
Mercantile Mortgage Financial Company	Subsidary	11/14/1997	8/11/2000
Roosevelt Texas Holdings, Inc.	Subsidary	7/1/1997	8/11/2000
Mercantile Center Associates	Subsidary	3/13/1986	8/9/2000
Benton United Financial Services, Inc.	Subsidary	9/19/1998	6/15/2000
Mercantile Business Credit Inc.	Subsidary	3/13/1986	5/12/2000
Mississippi Valley Advisors	Subsidary	7/15/1988	4/4/2000
Mercantile Insurance Services, Inc.	Subsidary	7/2/1997	3/16/2000
Mercantile Investment Services, Incorporated	Subsidary	7/15/1988	3/1/2000
Infinet Securities, Inc.	Subsidary	6/21/1997	1/7/2000
Mark Twain Brokerage Services Inc.	Subsidary	6/21/1997	6/30/1999
Manley Investment Company	Subsidary	3/13/1986	3/31/1999
Mercantile Subsidiary #1 Inc	Subsidary	3/13/1986	12/17/1998
Western Financial L.L.C.	Subsidary	12/12/1998	12/13/1998
Southeast Financial L.L.C.	Subsidary	12/12/1998	12/13/1998
Central Financial L.L.C.	Subsidary	12/12/1998	12/13/1998
South Central Financial L.L.C.	Subsidary	12/12/1998	12/13/1998
American Property And Casualty Company	Subsidary	11/14/1997	12/11/1998
Mercantile Community Development Corporation	Subsidary	6/21/1997	3/23/1998
Mark Twain Leasing Company	Subsidary	6/21/1997	8/18/1997
Mark Twain Mortgage Company	Subsidary	6/21/1997	8/18/1997
Mercantile Mortgage Investment Company, Inc.	Subsidary	6/28/1996	6/30/1996
United Postal Financial Services, Inc.	Subsidary	2/2/1994	12/30/1994
Mississippi Valley Company	Subsidary	12/11/1994	12/12/1994
Lake Perry Company	Subsidary	3/13/1986	5/25/1990
North Lake Perry	Subsidary	3/13/1986	5/25/1990
State Bank Of Campbell	Subsidary	5/16/1986	3/21/1990
Boulevard Redevelopment Company	Subsidary	3/13/1986	12/14/1989
Mercantile Customs Service Inc.	Subsidary	3/13/1986	12/13/1989
Citizens Bank, National Association	Subsidary	1/30/1988	10/15/1989
The Hill-Dodge Banking Company	Subsidary	6/1/1985	10/28/1988
Grandell Development Co., Inc.	Subsidary	3/13/1986	1/1/1987

Acquisitions & Mergers	Role	Assets	Acct Method	Type	Transaction Date
U.S. Bank National Association	Buyer	448,401,205	Pooling of Interests	Discontinued	8/12/2000
Trenton Branch	Seller		Pooling of Interests	Discontinued	10/23/1999
Mercantile Bank Of Missouri Valley	Seller	102,555	Pooling of Interests	Discontinued	12/12/1998
Mercantile Bank Of Central Missouri	Seller	1,375,616	Pooling of Interests	Discontinued	12/12/1998
Mercantile Bank Of South Central Missouri	Seller	1,046,495	Pooling of Interests	Discontinued	12/12/1998
Mercantile Bank Of Northern Missouri	Seller	369,109	Pooling of Interests	Discontinued	12/12/1998
Memphis Branch	Seller		Pooling of Interests	Discontinued	12/12/1998
Mercantile Bank Of Western Missouri	Seller	662,721	Pooling of Interests	Discontinued	12/12/1998
Mercantile Bank Of Southeast Missouri	Seller	1,056,231	Pooling of Interests	Discontinued	12/12/1998
Central Bank	Seller	767,073	Pooling of Interests	Discontinued	9/19/1998
Bowling Green Branch	Seller		Pooling of Interests	Discontinued	12/13/1997
Roosevelt Bank	Seller	9,056,749	Pooling of Interests	Discontinued	11/14/1997
Mercantile Bank Of Illinois	Seller	640,775	Pooling of Interests	Discontinued	8/23/1997
Mark Twain Illinois Bank	Seller	174,114	Acquisition	Discontinued	8/23/1997
Mercantile Bank Of Illinois National Association	Seller	367,868	Pooling of Interests	Discontinued	6/21/1997
Mark Twain Bank	Seller	2,182,610	Pooling of Interests	Discontinued	6/21/1997
High Ridge Branch	Seller		Pooling of Interests	Discontinued	10/24/1996
United Postal Savings Association	Seller	1,225,781		Discontinued	8/17/1994
American Bank Of St. Louis	Seller	144,834		Discontinued	6/19/1992
Germaniabank, A Fsb	Seller	392,161		Failure	7/27/1991
Missouri Savings Association, Fa	Seller	458,704		Failure	9/8/1990
West Clay Office	Seller			Discontinued	3/25/1988
Mercantile Bank Of Northwest County National Association	Seller	20,596		Discontinued	3/6/1987
Clayton Mercantile National Bank	Seller	70,312		Discontinued	3/13/1986
Mercantile-Commerce Trust Company	Seller	132,017		Discontinued	3/13/1986
Lewis And Clark Mercantile Bank	Seller	77,761		Discontinued	3/13/1986
Mercantile Bank Of South County, National Association	Seller	27,198		Discontinued	3/13/1986
Mercantile National Bank Of St. Louis County	Seller	145,256		Discontinued	3/13/1986
Mercantile Trust Company National Association	Seller	3,963,731		Discontinued	3/13/1986
Gravois Bank At Mehlville	Seller	13,583		Discontinued	4/22/1985